Construction and method for constructing same

Abstract

A construction having generalized and alternative joints, capable of making pillar materials self-stood at in horizontal direction of lower frame materials. Upper and lower frame materials formed by laminating three sawn plates with two or more different plate width in plate thickness direction, and a recessed groove or a protruding stripe of the alternative joints is formed between outer layer plate width of outer layer sawn plates interposing an intermediate layer of laminated layers and an intermediate plate width of intermediate sawn plate interposed as the intermediate layer. The pillar materials are formed by laminating three sawn plates with same length in plate thickness direction, and a protrusion or a recess, which can be fitted closely to the recessed groove or the protruding stripe, are formed at both ends by deviating an intermediate sawn plate in a longitudinal direction for a distance of the difference to outer layer sawn plates.

The invention claimed is: 
     
       1. A wooden construction having structural materials for assembling by joining horizontal members and vertical members at a plurality of alternative joints such that the vertical members are self-standing, the wooden construction comprising:
 an upper frame and a lower frame formed by the horizontal members, the upper frame and the lower frame including a recessed groove or a protruding stripe extending across an entire length in a longitudinal direction of each of the horizontal members so as to form an alternative joint of the plurality of alternative joints, the horizontal members being formed from three horizontal sawn plates that are laminated and have different plate widths in a plate width direction such that the recessed groove or the protruding stripe is formed by a difference between an outer layer plate width of outer layer sawn plates of the three horizontal sawn plates interposing an intermediate layer of the three horizontal sawn plates and an intermediate plate width of an intermediate sawn plate of the three horizontal sawn plates; 
 a plurality of pillars or framework walls formed by the vertical members, each pillar of the plurality of pillars including a protrusion at a first vertical end and a recess at a second vertical end opposite to the first vertical end, the protrusion being configured to be fitted to the recessed groove, and the recess being configured to be fitted to the protruding stripe, with the proviso that each pillar with the protrusion at the first vertical end and the recess at the second vertical end is formed by laminating three vertical sawn plates of a same length and an identical material, in a plate thickness direction; and 
 an eaves holder or an upper rail including two or more boards configured to cover at least one side of the protruding stripe by covering the difference between the outer layer plate width of the outer layer sawn plates of the three horizontal sawn plates and the intermediate plate width of the intermediate sawn plate of the three horizontal sawn plates. 
 
     
     
       2. The wooden construction according to  claim 1 , wherein
 the protrusion or the recess of each pillar of the plurality of pillars is configured to be fitted closely to the recessed groove or the protruding stripe of the horizontal members by deviating an intermediate sawn plate of the three vertical sawn plates in a vertical direction at a distance corresponding to the difference between the outer layer plate width of the outer layer sawn plates of the three horizontal sawn plates and the intermediate plate width of the intermediate sawn plate of the three horizontal sawn plates. 
 
     
     
       3. The wooden construction according to  claim 2 , further comprising floor joists, wherein:
 outer layer sawn plates of the upper frame have a thickness of 38 mm and a width of 140 mm or 184 mm, 
 the floor joists have a thickness of 38 mm and a width of 235 mm, and 
 outer layer sawn plates of the lower frame and an intermediate plate of the upper frame have a thickness of 38 mm and a width of 89 mm or 114 mm. 
 
     
     
       4. The wooden construction according to  claim 2 , wherein the three horizontal sawn plates and the three vertical sawn plates are composed of solid wood, laminated wood, or laminated veneer lumber. 
     
     
       5. The wooden construction according to  claim 1 , wherein:
 the protruding stripe of the lower frame is directed upward, 
 each pillar of the plurality of pillars stands
 with the recess formed at the second vertical end, which is a lower end of the respective pillar and being directed downward, and 
 with the protrusion formed at the first vertical end, which is an upper end of the respective pillar and being directed upward, 
 each pillar of the plurality of pillars is configured to be self-stood by joining the recess of the respective pillar to the protruding stripe of the lower frame, and 
 the recessed groove of the upper frame being configured to be assembled to the plurality of pillars by fitting the recessed groove of the upper frame downwardly to the protrusion of a respective self-standing pillar of the plurality of pillars. 
 
 
     
     
       6. A wooden construction having structural materials for assembly by joining a plurality of horizontal members and a plurality of vertical members, the wooden construction comprising:
 a plurality of joists forming the plurality of horizontal members, each joist of the plurality of joists including a protruding stripe formed in a plate by a surface joining a side joist of the plurality of joists and a back side joist of the plurality of joists, the back side joist having a plate width wider than a plate width of the side joist and being disposed at a back side of the side joist such that the protruding stripe protrudes upward by a difference of the plate width of the back side joist and the plate width of the side joist, and the back side joist is formed along a longitudinal direction; 
 a plurality of pillars forming the vertical members and including a protrusion at an upper end and a recess at a lower end opposite to the upper end of each pillar of the plurality of pillars, the protrusion being configured to be fitted to the recessed groove, and the recess being configured to be fitted to the protruding stripe so as to have the vertical members self-stand, with the proviso that each pillar with the protrusion at the upper end and the recess at the lower end is formed by laminating three vertical sawn plates of a same length and an identical material, in a plate thickness direction; and 
 an eaves holder or upper rail including two or more boards configured to cover at least one side of the protruding stripe by covering the difference of the plate width of the back side joist and the plate width of the side joist. 
 
     
     
       7. A construction method for assembling a wooden construction having structural materials in which vertical members composing pillar materials or framework walls are fitted to horizontal members composing a lower frame and an upper frame at a construction site, the method comprising:
 an alternative joint forming step for forming alternative joints at fitting parts of the structural materials, the alternative joint forming step including:
 laminating three horizontal sawn plates with two or more different plate widths in a plate thickness direction so as to form one of the alternative joints over an entire length in a longitudinal direction of each one of the upper frame and the lower frame, and such that a recessed groove or a protruding stripe is formed in the longitudinal direction by a difference between an outer layer plate width of outer layer sawn plates of the three horizontal sawn plates interposing an intermediate layer sawn plate and an intermediate plate width of the intermediate layer sawn plate; and 
 
 an assembly step for assembling the structural materials formed with the alternative joints, the assembly step including:
 fitting the vertical members to the horizontal members at a position in a horizontal direction of the horizontal members such that the vertical members are self-standing, each vertical member of the vertical members including a protrusion at a first vertical end and a recess at a second vertical end opposite to the first vertical end, the protrusion being configured to be fitted to the recessed groove, and the recess being configured to be fitted to the protruding stripe, with the proviso that each vertical member with the protrusion at the first vertical end and the recess at the second vertical end is formed by laminating three vertical sawn plates of a same length and an identical material, in a plate thickness direction, and 
 positioning eaves holders or upper rails including two or more boards positioned to cover at least one side of the protruding stripe. 
 
 
     
     
       8. The construction method according to  claim 7 , wherein:
 the alternative joint forming step includes a pillar end recess and end protrusion forming step including laminating the three vertical sawn plates of the same length and the identical material in the plate thickness direction so as to form the alternative joints at opposite ends of each pillar of a plurality of pillars such that the recess or the protrusion configured to fit to the protruding stripe or the recessed groove is formed by deviating an intermediate sawn plate of the three vertical sawn plates in the longitudinal direction from two outer layer sawn plates of the three vertical sawn plates by an amount corresponding to the difference, and 
 the assembly step includes:
 arranging the lower frame; 
 standing the pillar of the plurality of pillars by fitting the recess at a lower end of each pillar of the plurality of pillars to the protruding stripe of the lower frame, and 
 fitting the upper frame having the recessed groove so as to cover a top of the protrusion formed at an upper end of the standing pillar of the plurality of pillars. 
 
 
     
     
       9. The construction method according to  claim 8 , wherein the three horizontal sawn plates and the three vertical sawn plates are composed of solid wood, laminated wood, or laminated veneer lumber.